Intel Core i9-14900KF vs Intel Core Ultra 7 265K Comparison

The Intel Core i9-14900KF and Intel Core Ultra 7 265K are two desktop processors that land within a fraction of a percent of each other in average benchmark scores, yet they achieve that parity through completely different designs. The i9-14900KF averages 79,245 across all benchmarks, while the Ultra 7 265K posts 79,102, a gap of just 0.2%. Both sit at the 97th percentile among all CPUs, and their closest rival, the Intel Core i9-14900K, is only 0.7% to 0.9% away. The data shows a genuine split: the i9-14900KF wins 3 head-to-head tests, while the Ultra 7 265K takes 14. That distribution tells the real story.

Where Each One Wins

The Intel Core i9-14900KF is a specialized tool for integer-heavy and compression workloads. Its biggest win comes in PassMark integer math, where it scores 209,125 against the Ultra 7 265K’s 143,387, a 45.8% advantage. It also dominates data compression, scoring 785,831 versus 668,420, a 17.6% lead. The third win is random string sorting, at 86,564 versus 80,132, an 8% edge. If your work involves number crunching with large integers, database-style operations, or sorting through text data, the i9-14900KF is measurably faster.

The Intel Core Ultra 7 265K wins everywhere else. Its most dramatic victories are in PassMark find prime numbers (495 versus 231, a 53.3% lead) and floating-point math (190,032 versus 151,918, up 20.1%). It also leads in extended instructions (54,620 versus 44,839, a 17.9% gap) and physics simulation (3,826 versus 3,159, up 17.4%). In Cinebench tests, the Ultra 7 265K edges ahead consistently, though by slim margins: R15 multi-core 5,040 versus 5,003 (0.7%), R20 multi-core 21,003 versus 20,847 (0.7%), and R23 multi-core 50,009 versus 49,636 (0.7%). Single-core Cinebench scores are similarly close, with the Ultra 7 265K leading by 0.7% to 0.8% across R15, R20, and R23. PassMark single-thread also favors the Ultra 7 265K, 4,904 versus 4,685, a 4.5% margin.

Architecture Differences

The two processors represent distinct Intel design philosophies. The i9-14900KF is built on Raptor Lake, specifically the Raptor Lake-R refresh, using a 10 nm process fabricated by Intel. Its die size is 257 mm². The Ultra 7 265K uses Arrow Lake, the Arrow Lake-S codename, on a 3 nm process from TSMC, with a slightly smaller die at 243 mm² and 17,800 million transistors.

Core counts differ significantly. The i9-14900KF has 24 cores and 32 threads, while the Ultra 7 265K has 20 cores and 20 threads. That means the Ultra 7 265K has no hyperthreading, a major design change. The i9-14900KF compensates with higher boost clock: 6.00 GHz versus 5.50 GHz. Base clocks are reversed, with the Ultra 7 265K at 3.90 GHz versus 3.20 GHz for the i9-14900KF.

Cache layouts also diverge. The i9-14900KF uses 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The Ultra 7 265K has larger per-core caches: 192 KB L1 per core and 3 MB L2 per core, but less total L3 at 30 MB shared. Memory support differs as well: the i9-14900KF supports both DDR4 and DDR5, while the Ultra 7 265K is DDR5-only. The Ultra 7 265K lists a memory bandwidth of 102.4 GB/s; no figure is provided for the i9-14900KF. Both have dual-channel memory buses and support ECC memory. PCIe lanes also differ: the i9-14900KF offers Gen 5 with 16 CPU lanes, while the Ultra 7 265K provides Gen 5 with 20 CPU lanes. The Ultra 7 265K includes integrated graphics (Arc Xe-LPG Graphics 64EU), while the i9-14900KF has none listed.

Head-to-Head Benchmarks

The Cinebench suite shows near-parity, with the Ultra 7 265K taking every test but by margins under 1%. In R15 multi-core, the Ultra 7 265K scores 5,040 against 5,003, a 0.7% win. R15 single-core is 711 versus 706, also 0.7%. R20 multi-core: 21,003 versus 20,847 (0.7%), and R20 single-core: 2,965 versus 2,942 (0.8%). R23 multi-core: 50,009 versus 49,636 (0.7%), with R23 single-core at 7,060 versus 7,007 (0.8%). These are effectively ties for most workloads, but the consistency favors the Ultra 7 265K.

PassMark multi-thread is another near-tie: 58,838 versus 58,405, a 0.7% lead for the Ultra 7 265K. Single-thread tests show a clearer gap: 4,904 versus 4,685, a 4.5% advantage for the Ultra 7 265K. Data encryption also goes to the Ultra 7 265K, 48,380 versus 46,416, a 4.1% lead.

The biggest wins belong to the Ultra 7 265K in specialized math. Find prime numbers shows a 53.3% advantage (495 versus 231), which is the largest delta in the entire comparison. Floating-point math follows with a 20.1% lead (190,032 versus 151,918). Extended instructions are 17.9% higher (54,620 versus 44,839), and physics simulation is 17.4% higher (3,826 versus 3,159).

The i9-14900KF’s wins are fewer but substantial. Integer math is its crown jewel: 209,125 versus 143,387, a 45.8% lead. Data compression follows at 17.6% (785,831 versus 668,420), and random string sorting at 8% (86,564 versus 80,132). These are not trivial margins; they indicate a fundamental difference in how each processor handles certain instruction types.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core i9-14900KF has 24 cores and 32 threads, while the Intel Core Ultra 7 265K has 20 cores and 20 threads. The i9-14900KF offers 12 more threads, but the Ultra 7 265K still wins most multi-threaded benchmarks.

Q: Does the Ultra 7 265K support DDR4 memory?

A: No. The Ultra 7 265K supports only DDR5, while the i9-14900KF supports both DDR4 and DDR5. This makes the i9-14900KF a potential upgrade path for systems with existing DDR4 memory.

Q: Which CPU has integrated graphics?

A: The Intel Core Ultra 7 265K includes Arc Xe-LPG Graphics 64EU, while the i9-14900KF lists no integrated graphics. The i9-14900KF’s “KF” suffix indicates a discrete GPU is required.

Q: How do they compare in Cinebench R23 multi-core?

A: The Ultra 7 265K scores 50,009, which is 0.7% ahead of the i9-14900KF’s 49,636. This is a negligible difference for rendering workloads.

Q: What is the largest benchmark gap between the two?

A: The largest gap is in PassMark find prime numbers, where the Ultra 7 265K scores 495 versus 231 for the i9-14900KF, a 53.3% advantage. The second largest is in integer math, where the i9-14900KF leads by 45.8%.

Q: Are both processors unlocked for overclocking?

A: Yes, both the i9-14900KF and the Ultra 7 265K have unlocked multipliers. They also share the same 125 W TDP.

Specification Differences

• Cores: 24 (i9-14900KF) versus 20 (Ultra 7 265K)
• Threads: 32 (i9-14900KF) versus 20 (Ultra 7 265K)
• Base Clock: 3.20 GHz (i9-14900KF) versus 3.90 GHz (Ultra 7 265K)
• Boost Clock: 6.00 GHz (i9-14900KF) versus 5.50 GHz (Ultra 7 265K)
• Socket: Intel Socket 1700 (i9-14900KF) versus Intel Socket 1851 (Ultra 7 265K)
• Architecture: Raptor Lake (i9-14900KF) versus Arrow Lake (Ultra 7 265K)
• Process Node: 10 nm (i9-14900KF) versus 3 nm (Ultra 7 265K)
• Foundry: Intel (i9-14900KF) versus TSMC (Ultra 7 265K)
• Die Size: 257 mm² (i9-14900KF) versus 243 mm² (Ultra 7 265K)
• Transistors: Not listed for i9-14900KF; 17,800 million for Ultra 7 265K
• L1 Cache: 80 KB per core (i9-14900KF) versus 192 KB per core (Ultra 7 265K)
• L2 Cache: 2 MB per core (i9-14900KF) versus 3 MB per core (Ultra 7 265K)
• L3 Cache: 36 MB shared (i9-14900KF) versus 30 MB shared (Ultra 7 265K)
• Memory Support: DDR4, DDR5 (i9-14900KF) versus DDR5 only (Ultra 7 265K)
• Memory Bandwidth: Not listed for i9-14900KF; 102.4 GB/s for Ultra 7 265K
• PCIe: Gen 5, 16 Lanes (i9-14900KF) versus Gen 5, 20 Lanes (Ultra 7 265K)
• Integrated Graphics: None (i9-14900KF) versus Arc Xe-LPG Graphics 64EU (Ultra 7 265K)
• Launch MSRP: $564 (i9-14900KF) versus $394 (Ultra 7 265K)
• Part Number: SRN49 (i9-14900KF) versus SRQCW (Ultra 7 265K)

The Verdict

The data points to two different buyers. The Intel Core i9-14900KF is the choice for integer-heavy workloads. Its 45.8% lead in integer math and 17.6% lead in data compression are decisive. If you are running software that churns through large integers, compression algorithms, or string sorting, the i9-14900KF will finish those tasks noticeably faster. The 8% edge in random string sorting reinforces this pattern. Its support for DDR4 also makes it a practical drop-in for existing builds, though it requires a dedicated GPU.

The Intel Core Ultra 7 265K is the broader all-rounder. It wins 14 of 17 head-to-head tests, including every Cinebench benchmark, all single-thread tests, and the majority of PassMark’s suite. The 53.3% lead in prime number calculation and 20.1% lead in floating-point math suggest it handles scientific, simulation, and general computational tasks with more efficiency. The 17.9% advantage in extended instructions and 17.4% in physics simulation further support this. It also includes integrated graphics, which is a fallback for troubleshooting or light display output, and it carries a lower launch MSRP of $394 versus $564.

For a builder who knows their workload is integer-bound, the i9-14900KF is the only choice. For anyone doing mixed work — rendering, simulation, general productivity, or single-thread-sensitive tasks — the Ultra 7 265K is the safer pick. The average benchmark scores are essentially identical (79,245 versus 79,102), so neither processor is a bad buy. The deciding factor is which specific benchmarks match your daily tasks. The i9-14900KF wins big in a few areas; the Ultra 7 265K wins small everywhere else.